Re: [PATCH 2/3] ARM: dts: sun6i: Add the SPDIF block to the A31

Code Kipper
2016-12-20T14:34:10Z

On 20 December 2016 at 15:07, Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> wrote:
> Hi,
>
> On Tue, Dec 20, 2016 at 11:40:37AM +0100, codekipper-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>> From: Marcus Cooper <codekipper-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>
>> Add the SPDIF transceiver controller block to the A31 dtsi.
>>
>> Signed-off-by: Marcus Cooper <codekipper-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> ---
>> arch/arm/boot/dts/sun6i-a31.dtsi | 14 ++++++++++++++
>> 1 file changed, 14 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
>> index 7370ba6c9993..559c53efa7e6 100644
>> --- a/arch/arm/boot/dts/sun6i-a31.dtsi
>> +++ b/arch/arm/boot/dts/sun6i-a31.dtsi
>> @@ -613,6 +613,20 @@
>> reg = <0x01c20ca0 0x20>;
>> };
>>
>> + spdif: spdif@01c21000 {
>> + #sound-dai-cells = <0>;
>> + compatible = "allwinner,sun6i-a31-spdif";
>> + reg = <0x01c21000 0x400>;
>> + interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&ccu CLK_APB1_SPDIF>, <&ccu CLK_SPDIF>;
>> + resets = <&ccu RST_APB1_SPDIF>;
>> + clock-names = "apb", "spdif";
>> + dmas = <&dma 2>, <&dma 2>;
>> + dma-names = "rx", "tx";
>> + spdif-out = "disabled";
>
> That property isn't documented anywhere, and doesn't seem to be used
> in your driver either.
Ooops....do you want me to respin a new patch or will you do your
magic with 'dd'? It fell through the cracks as it was cherry picked
from my dev branch where I was at one time playing with spdif-in. This
has pretty much been relegated to the bottom of my todo/finish list.
>
> On a separate topic, is the channel inversion bug also found on the
> A31?
I have seen this and I'm sure that was also on my A31 hardware but
I've just fired her up and the speaker test worked as expected. I also
repeated the test on my A10 device and didn't hear the issue.
CK
>
> Maxime
>
> --
> Maxime Ripard, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com